diff options
Diffstat (limited to 'package/kernel/mac80211/patches/rt2x00/020-rt2800-remove-errornous-duplicate-condition.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/rt2x00/020-rt2800-remove-errornous-duplicate-condition.patch | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/rt2x00/020-rt2800-remove-errornous-duplicate-condition.patch b/package/kernel/mac80211/patches/rt2x00/020-rt2800-remove-errornous-duplicate-condition.patch new file mode 100644 index 0000000000..91d12b51a2 --- /dev/null +++ b/package/kernel/mac80211/patches/rt2x00/020-rt2800-remove-errornous-duplicate-condition.patch @@ -0,0 +1,88 @@ +From patchwork Sat Nov 2 17:47:01 2019 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 7bit +X-Patchwork-Submitter: Daniel Golle <daniel@makrotopia.org> +X-Patchwork-Id: 11224189 +X-Patchwork-Delegate: kvalo@adurom.com +Return-Path: <SRS0=CgQo=Y2=vger.kernel.org=linux-wireless-owner@kernel.org> +Date: Sat, 2 Nov 2019 18:47:01 +0100 +From: Daniel Golle <daniel@makrotopia.org> +To: Stanislaw Gruszka <sgruszka@redhat.com> +Cc: linux-wireless@vger.kernel.org, Roman Yeryomin <roman@advem.lv>, + wbob <wbob@jify.de> +Subject: [PATCH v2] rt2800: remove errornous duplicate condition +Message-ID: <20191102174701.GA1489@makrotopia.org> +References: <20191102154639.GA4589@redhat.com> +MIME-Version: 1.0 +Content-Disposition: inline +In-Reply-To: <20191102154639.GA4589@redhat.com> +User-Agent: Mutt/1.12.2 (2019-09-21) +Sender: linux-wireless-owner@vger.kernel.org +Precedence: bulk +List-ID: <linux-wireless.vger.kernel.org> +X-Mailing-List: linux-wireless@vger.kernel.org + +On 2019-10-28 06:07, wbob wrote: +> Hello Roman, +> +> while reading around drivers/net/wireless/ralink/rt2x00/rt2800lib.c +> I stumbled on what I think is an edit of yours made in error in march +> 2017: +> +> https://github.com/torvalds/linux/commit/41977e86#diff-dae5dc10da180f3b055809a48118e18aR5281 +> +> RT6352 in line 5281 should not have been introduced as the "else if" +> below line 5291 can then not take effect for a RT6352 device. Another +> possibility is for line 5291 to be not for RT6352, but this seems +> very unlikely. Are you able to clarify still after this substantial time? +> +> 5277: static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev) +> ... +> 5279: } else if (rt2x00_rt(rt2x00dev, RT5390) || +> 5280: rt2x00_rt(rt2x00dev, RT5392) || +> 5281: rt2x00_rt(rt2x00dev, RT6352)) { +> ... +> 5291: } else if (rt2x00_rt(rt2x00dev, RT6352)) { +> ... + +Hence remove errornous line 5281 to make the driver actually +execute the correct initialization routine for MT7620 chips. + +As it was requested by Stanislaw Gruszka remove setting values of +MIMO_PS_CFG and TX_PIN_CFG. MIMO_PS_CFG is responsible for MIMO +power-safe mode (which is disabled), hence we can drop setting it. +TX_PIN_CFG is set correctly in other functions, and as setting this +value breaks some devices, rather don't set it here during init, but +only modify it later on. + +Fixes: 41977e86c984 ("rt2x00: add support for MT7620") +Reported-by: wbob <wbob@jify.de> +Reported-by: Roman Yeryomin <roman@advem.lv> +Signed-off-by: Daniel Golle <daniel@makrotopia.org> +Acked-by: Stanislaw Gruszka <sgruszka@redhat.com> +--- + drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 5 +---- + 1 file changed, 1 insertion(+), 4 deletions(-) + +--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +@@ -5839,8 +5839,7 @@ static int rt2800_init_registers(struct + rt2800_register_write(rt2x00dev, TX_TXBF_CFG_0, 0x8000fc21); + rt2800_register_write(rt2x00dev, TX_TXBF_CFG_3, 0x00009c40); + } else if (rt2x00_rt(rt2x00dev, RT5390) || +- rt2x00_rt(rt2x00dev, RT5392) || +- rt2x00_rt(rt2x00dev, RT6352)) { ++ rt2x00_rt(rt2x00dev, RT5392)) { + rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000404); + rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x00080606); + rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000000); +@@ -5854,8 +5853,6 @@ static int rt2800_init_registers(struct + rt2800_register_write(rt2x00dev, TX_SW_CFG0, 0x00000401); + rt2800_register_write(rt2x00dev, TX_SW_CFG1, 0x000C0000); + rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000000); +- rt2800_register_write(rt2x00dev, MIMO_PS_CFG, 0x00000002); +- rt2800_register_write(rt2x00dev, TX_PIN_CFG, 0x00150F0F); + rt2800_register_write(rt2x00dev, TX_ALC_VGA3, 0x00000000); + rt2800_register_write(rt2x00dev, TX0_BB_GAIN_ATTEN, 0x0); + rt2800_register_write(rt2x00dev, TX1_BB_GAIN_ATTEN, 0x0); |